Title: Diagnose two-stroke engine components.
Course: Small Engine Technology II (20110-II) > Section: Diagnosing and Troubleshooting Two-Stroke Engines

Diagnosis should follow manufacturer’s specifications and instructor’s guidelines and should include

- interpreting and verifying complaint
- inspecting engine assembly for leaks
- listening to engine noises
- inspecting reed valves
- inspecting piston skirt and cylinder walls for scoring and wear
- diagnosing the cause of excessive oil consumption, unusual engine exhaust color, odor, and sound
- performing engine vacuum tests
- performing cylinder compression tests
- performing cylinder leakage tests
- determining needed repairs for each component.

Process/Skill Questions:

- What procedure would one use to diagnose problems with a two-stroke engine?
- How would one determine the economic feasibility of repairing a two-stroke engine?
- What customer-related issues are involved with determining needed repairs?